Expanded Memory
EMS Memory
Expanded Memory Specification
                                                    
EMS (or expanded memory) is a type of memory
available on 8088- and 286-based computers that have
a special memory hardware and a supporting device
driver.  It is also available on 386-based computers
when EMM386.EXE (or other emulator) is installed.

EMS works by taking a "window" of memory addresses
between the 640K and 1MB marks, and "paging" blocks
of memory into that window.
                                                     
  TECH Help! covers programming aspects of EMS in
detail.  See EMS in the Index.

qMemEMS